Aims: This study was done to investigate the effect of low energy laser therapy on bone healing at the extraction site. Materials and methods:(24) male albino rats were exposed to the extraction procedure of the maxillary first molar on the first day of a seven day experiment and these animals were divided into two main groups; the control group and the laser group. The laser experiment involved using (Ga-As infrared diode laser) from optodent by directing the probe over the extraction site. The control group consisted of 4 rats, and the laser group was subdivided into 5 subgroups of 4 rats each. The laser dose was as follows: B1: a single dose of 5 minutes immediately after extraction., B2: a single dose of 35 minutes immediately after extraction., B3: 7 doses for 7 days as 5 minutes /day from day 1-7., B4: 3 doses for 3 days as 10 minutes /day at days 1, 2, 3., B5: 3 doses for 3 days as 10 minutes/day at days 4, 5, 6., The specimens were prepared for histological study, then examined under light microscopy, Results: They revealed a difference in the rate of bone healing between the control and laser groups and multiple doses of low energy laser were effective in enhancing bone formation than the single dose, showing that retardation in the healing may be due to the anti-inflammatory effect of the laser or due to upset of inflammation by mast cells. The healing of the bone in (B5) group was much prominent than in other groups. Conclusions: low energy laser may be beneficial in the enhancement of healing which will minimize the infection, and reduce patient suffering and the incidence of post-extraction complications.
The stage of the establishment of the Alawite state in tabaristan was one of the most important stages in the history of the Shiite sect in Iran , from a political , religious and even military point of view ,
ان مرتكزات السياسة الخارجية العراقية لمرحلة ما بعد العام 2003 قد عكست توجهات ايجابية قادت الى صياغة مجموعة من الرؤى والتصورات الاستراتيجية الجديدة التي افضت الى اعتماد وتوظيف الوسائل والقنوات الدبلوماسية بوصفها وسائل فعالة وبطريقة متكاملة ومتوازنة من اجل تعزيز مستويات الاداء الفعلي وتحقيق جميع الاهداف المستقبلية للسياسة الخارجية العراقية في ضوء صياغة معادلة مفادها: تدعيم وترصين اداء مؤسسات صنع السياسة ال
... Show Moreوقائع واوراق ندوة (السياسة الخارجية الامريكية في عهد اوباما) التي عقدها فرع الدراسات الدولية في 25 تشرين الثاني 2009
The Negro minority in the United States is associated with social injustice,
political deprivation, and economic oppresion. Its members felt that they are
second-class citizens, and that the acceptance of such status will lead to the
continual oppresion of the Whites upon them. As a result, the educated community
adopted a process to put a framework to their opposition to the former's injustice.
This organised framework is exemplified in the "Niagara Movement," which is
regarded as the first national organisation for Negros. The topic of this study is
chosen due to its historical and political significance.
The study consists of an introduction and five sections. The first section
addresses the preliminaries an
Barium–doped TiO2 / n-Si photodetector was fabricated by spray pyrolysis exhibited visible enhancement responsivity profile with peak response at 600 nm flat response between 650 and 900 nm. The quantum efficiency was 30% and specific detectivity was 5x1012 W-1Hz1/2cm at peak response. The GaAlAs laser diode was used to estimate the rise time of the detector.
The Subject of contritutions to Jerusalemites Scientific in Egypt from 8.5 Century 14.11 AD of noteworthy studies Concern Coming Of these Scientists to Egypt has helped toth to Seek Knowledge and Study or teaching in the tooming w0rid of Science broadly and distinctive through Scientific interaction and intermingling of Civilization between Scientists this Mixing effect of the Scientific life and in tellectal of The nam
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The Andalusi did not leave any poetic art without expressing his psychological and sentimental emotions and the depth of emotions and it sincerity. We found Andalusian translated his emotions into poetry and in many different subjects
There are many economic and financial visions that were mentioned in the book (Al-Anis Al-Mutreb in Rawd Al-Qirtas in the News of the Kings of Morocco and the History of the City of Fez). As this valuable book includes between its two covers, narrations that reveal important and pioneering events and practices that took place and were applied in the recent past on the scene of the countries of the Maghreb. This prompted the officials in the Marinid state to take quick measures to address and confront what happened. Despite the large number and severity of these repercussions and interactions, it is not the nature of this research to download texts and visions beyond what they can bear, but
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